I suspect that her thought processes didn't involve the screen size at all, or any kind of technical specification. She probably couldn't tell how much ram was in the respective devices. She might however be able to tell you how they looked, and which phone was the most attractive. And she might be able to tell you about the fact that the 5s had the fingerprint sensor, which made it a killer upgrade over the 5. And even if you sat with her for days and let her try every alternative device, I'm not sure you would ever have convinced her otherwise, because ultimately she values a completely different spectrum of qualities in a device than you do. And you know something, if I had to buy a new car, I care so little for vehicles that I'd end up infuriating a car enthusiast because I just wouldn't care about half the specs they rave on about; I actually just want something that looks nice, and doesn't give me any troubles. And moreover, I also suspect that in your fixation on specs, you miss some of the most crucial areas of real technical expertise where the iPhone is still such ahead of other phones on the market. I love my G2, honestly I do, but it doesn't have a shade on the iPhone6 in terms of physical appeal.